id:A067129 - OEIS Search Results

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Numbers n such that sigma(n-3)+sigma(n+3)=sigma(2n).

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5, 63, 99, 279, 355, 551, 561, 639, 1359, 1915, 2151, 2799, 4311, 8199, 8919, 10915, 12591, 13239, 16265, 16911, 17991, 18999, 20799, 24039, 24471, 28071, 28719, 30519, 33039, 35271, 40671, 43479, 45351, 48879, 51623, 52911, 56799, 60471 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjecture : sequence gives odd values only`
	CROSSREFS	`Cf. A067730.` `Sequence in context: A116163 A092823 A111387 this_sequence A063079 A112788 A004193` `Adjacent sequences: A067126 A067127 A067128 this_sequence A067130 A067131 A067132`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 18 2002`

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Last modified July 6 17:22 EDT 2008. Contains 140988 sequences.

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